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Finding the Fourth Proportional to 663,298.80, 995,089.86 and 214,045.20

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Solution

The fourth proportional to 663,298.80, 995,089.86 and 214,045.20 is: 321,113.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,298.80 : 995,089.86 = 214,045.20 : x
  2. Step 2: Convert to fraction form
    663,298.80/995,089.86 = 214,045.20/x
  3. Step 3: Cross multiply
    663,298.80x = 995,089.86 × 214,045.20
  4. Step 4: Simplify right side
    663,298.80x = 212,994,208,101.67
  5. Step 5: Solve for x
    x = 212,994,208,101.67/663,298.80
  6. Step 6: Final answer
    x = 321,113.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.